isobutane(redirected from E943b)
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Related to E943b: E555, E944
isobutane(ī'səbyo͞o`tān): see butanebutane
, C4H10, gaseous alkane, a hydrocarbon that is obtained from natural gas or by refining petroleum. It can be liquefied at room temperature by compression. There are two structural isomers of butane.
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(CH3)2CHCH3 A colorless, stable gas, noncorrosive to metals, nonreactive with water; boils at -11.7°C; used as a chemical intermediate, refrigerant, and fuel.